[INFO] updating cached repository saresend/shack
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saresend/shack
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saresend/shack" "work/ex/clippy-test-run/sources/stable/gh/saresend/shack"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable/gh/saresend/shack'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saresend/shack" "work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/saresend/shack"`
[INFO] [stderr] Cloning into 'work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/saresend/shack'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3773d62601ca91564fbd10c62859297504807cd9
[INFO] sha for GitHub repo saresend/shack: 3773d62601ca91564fbd10c62859297504807cd9
[INFO] validating manifest of saresend/shack on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of saresend/shack on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing saresend/shack
[INFO] finished frobbing saresend/shack
[INFO] frobbed toml for saresend/shack written to work/ex/clippy-test-run/sources/stable/gh/saresend/shack/Cargo.toml
[INFO] started frobbing saresend/shack
[INFO] finished frobbing saresend/shack
[INFO] frobbed toml for saresend/shack written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/gh/saresend/shack/Cargo.toml
[INFO] crate saresend/shack has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting saresend/shack against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-2/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/gh/saresend/shack:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 366ff7053609f82e80a235110e2858bcaf6688fdfc16be39b0ec866049ceb219
[INFO] running `"docker" "start" "-a" "366ff7053609f82e80a235110e2858bcaf6688fdfc16be39b0ec866049ceb219"`
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.16
[INFO] [stderr]     Checking shack v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/database.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     f.write(b"\n").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/database.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     f.write(b"\n").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/database.rs:123:12
[INFO] [stderr]     |
[INFO] [stderr] 123 |       if let Err(_) = fs::metadata(&database_url()) {
[INFO] [stderr]     |  _____-      ^^^^^^
[INFO] [stderr] 124 | |         let cont = Data { elements: vec![] };
[INFO] [stderr] 125 | |         let mut f = File::create(&database_url()).unwrap();
[INFO] [stderr] 126 | |
[INFO] [stderr] 127 | |         f.write_all(serde_json::to_string(&cont).unwrap().as_bytes())
[INFO] [stderr] 128 | |             .unwrap();
[INFO] [stderr] 129 | |     }
[INFO] [stderr]     | |_____- help: try this: `if fs::metadata(&database_url()).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `shack`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/database.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     f.write(b"\n").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(clippy::unused_io_amount)] on by default
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] error: handle written amount returned or use `Write::write_all` instead
[INFO] [stderr]   --> src/database.rs:78:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |     f.write(b"\n").unwrap();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unused_io_amount
[INFO] [stderr] 
[INFO] [stderr] warning: redundant pattern matching, consider using `is_err()`
[INFO] [stderr]    --> src/database.rs:123:12
[INFO] [stderr]     |
[INFO] [stderr] 123 |       if let Err(_) = fs::metadata(&database_url()) {
[INFO] [stderr]     |  _____-      ^^^^^^
[INFO] [stderr] 124 | |         let cont = Data { elements: vec![] };
[INFO] [stderr] 125 | |         let mut f = File::create(&database_url()).unwrap();
[INFO] [stderr] 126 | |
[INFO] [stderr] 127 | |         f.write_all(serde_json::to_string(&cont).unwrap().as_bytes())
[INFO] [stderr] 128 | |             .unwrap();
[INFO] [stderr] 129 | |     }
[INFO] [stderr]     | |_____- help: try this: `if fs::metadata(&database_url()).is_err()`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(clippy::redundant_pattern_matching)] on by default
[INFO] [stderr]     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_pattern_matching
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `shack`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "366ff7053609f82e80a235110e2858bcaf6688fdfc16be39b0ec866049ceb219"`
[INFO] running `"docker" "rm" "-f" "366ff7053609f82e80a235110e2858bcaf6688fdfc16be39b0ec866049ceb219"`
[INFO] [stdout] 366ff7053609f82e80a235110e2858bcaf6688fdfc16be39b0ec866049ceb219